Commit graph

1099 commits

Author SHA1 Message Date
Ben Burdette 023912def3 convenience form of addTrace 2020-06-24 13:46:25 -06:00
Ben Burdette b18ed02b76 repl indenting 2020-06-24 13:10:41 -06:00
Ben Burdette 00fe653ea5 nixCode -> LinesOfCode 2020-06-24 08:33:53 -06:00
Ben Burdette 1d43a6e123 use plain errPos instead of nixCode; fix tests 2020-06-23 15:30:13 -06:00
John Ericson ec3a857307 Fix and clean up hash parser 2020-06-23 18:19:40 +00:00
John Ericson 98e5d1af03 Merge remote-tracking branch 'upstream/master' into hash-always-has-type 2020-06-23 17:03:37 +00:00
Ben Burdette d0e78fbb03 re-add Pos origin in tests 2020-06-23 10:51:58 -06:00
Ben Burdette abe0552504 Merge remote-tracking branch 'upstream/master' into add-trace 2020-06-23 09:40:28 -06:00
Ben Burdette 13e87535ff traces to bottom 2020-06-23 09:36:58 -06:00
Eelco Dolstra 015e1c2131
Merge pull request #3724 from bburdette/hintfmt-percent
Hintfmt percent test, and fix
2020-06-23 12:26:00 +02:00
Ben Burdette 9d1cb0c5e6 with normaltxt, elide yellow color code instead of canceling it; use normaltxt on plain_string hintfmt 2020-06-22 11:32:20 -06:00
Ben Burdette 28b079067f
Update src/libutil/fmt.hh
Co-authored-by: John Ericson <git@JohnEricson.me>
2020-06-22 10:00:37 -06:00
Ben Burdette be4f444175 tidying up 2020-06-19 16:58:12 -06:00
Ben Burdette 0309488a66 fmt -> hintfmt test 2020-06-19 16:46:49 -06:00
Ben Burdette 397dbe114e remove formathelper 2020-06-19 15:57:19 -06:00
John Ericson 507aa48739 WIP: Make Hash always store a valid hash type 2020-06-19 21:48:57 +00:00
Ben Burdette b193aca4ae escape percents 2020-06-19 15:29:19 -06:00
Ben Burdette db475f9e7e too few, too many args 2020-06-19 15:28:13 -06:00
Ben Burdette cdddf24f25 add hintfmt test 2020-06-19 14:54:41 -06:00
Ben Burdette 54e8f550c9 addErrorTrace 2020-06-19 13:44:08 -06:00
John Ericson e288c0987a Merge remote-tracking branch 'upstream/master' into validPathInfo-ca-proper-datatype 2020-06-19 18:44:24 +00:00
John Ericson c98081d270 Merge remote-tracking branch 'upstream/master' into no-hash-type-unknown 2020-06-19 17:50:05 +00:00
John Ericson c1892a5316 tabs -> spaces 2020-06-19 17:49:57 +00:00
John Ericson 2f0e395c99 Merge remote-tracking branch 'me/no-stringly-typed-derivation-output' into validPathInfo-ca-proper-datatype 2020-06-19 15:26:59 +00:00
John Ericson b90cac3bad Remove uneeded = default for Hash 2020-06-19 15:00:38 +00:00
John Ericson 01dc8b0bab Merge remote-tracking branch 'upstream/master' into no-stringly-typed-derivation-output 2020-06-19 14:59:05 +00:00
Eelco Dolstra 2886c92aef
Merge pull request #3669 from gilligan/add-compression-tests
Add compression unit tests
2020-06-19 13:59:04 +02:00
John Ericson 3fc58a9638 Remove some Base:: that crept in 2020-06-19 00:24:47 +00:00
John Ericson 669c3992e8 Merge branch 'no-hash-type-unknown' into validPathInfo-temp 2020-06-18 22:33:07 +00:00
John Ericson 15abb2aa2b Revert the enum struct change
Not a regular git revert as there have been many merges and things.
2020-06-18 22:11:26 +00:00
John Ericson bbbf3602a3 Merge branch 'enum-class' into no-hash-type-unknown 2020-06-18 22:11:19 +00:00
John Ericson 40526fbea5 Merge remote-tracking branch 'upstream/master' into enum-class 2020-06-18 21:38:15 +00:00
Ben Burdette 4d1a4f0217 addTrace 2020-06-18 15:25:26 -06:00
Ben Burdette e6f93b94fc Merge branch 'master' into caveman-LOCs 2020-06-18 13:07:53 -06:00
Eelco Dolstra 4d5169bdd5
Merge pull request #3707 from p01arst0rm/outdated-function-fix
replaced uncaught_exception with uncaught_exceptions
2020-06-17 18:26:01 +02:00
John Ericson 6403508f5a Use ansicolor.hh in nix repl rather than duplicates 2020-06-17 15:13:00 +00:00
Eelco Dolstra 1524752c17 Merge remote-tracking branch 'origin/master' into flakes 2020-06-17 10:26:52 +02:00
John Ericson 517f5980e2 Merge remote-tracking branch 'upstream/master' into no-stringly-typed-derivation-output 2020-06-17 04:58:43 +00:00
p01arst0rm e9970a34e8 appended ' __attribute__((weak)); ' to 'extern char * * environ ' 2020-06-17 03:25:34 +01:00
p01arst0rm c9d06558b6 replaced uncaught_exception with uncaught_exceptions 2020-06-17 03:15:47 +01:00
Eelco Dolstra df4da4f5da
Merge pull request #3702 from NixOS/store-path-cxx
Rewrite StorePath class in C++
2020-06-16 21:37:26 +02:00
John Ericson fbf90bd693 Add another missing #include 2020-06-16 14:19:49 +00:00
Eelco Dolstra 759947bf72 StorePath: Rewrite in C++
On nix-env -qa -f '<nixpkgs>', this reduces maximum RSS by 20970 KiB
and runtime by 0.8%. This is mostly because we're not parsing the hash
part as a hash anymore (just validating that it consists of base-32
characters).

Also, replace storePathToHash() by StorePath::hashPart().
2020-06-16 14:28:41 +02:00
Tobias Pflug cd8214c398 Fix logging unit tests 2020-06-16 10:23:15 +02:00
John Ericson 7e7e3b71f3 Add mising #include for strerror 2020-06-15 23:35:07 +00:00
Eelco Dolstra 8b099812ea Respect terminal width printing error messages 2020-06-15 19:35:31 +02:00
Eelco Dolstra f20bb983ca Cleanup 2020-06-15 18:16:03 +02:00
Eelco Dolstra 5ed5d7acbd Improve "waiting for locks" messages
These are now shown in the progress bar.

Closes #3577.
2020-06-15 16:03:29 +02:00
Eelco Dolstra e14e62fddd Remove trailing whitespace 2020-06-15 14:12:39 +02:00
Eelco Dolstra 1fb762d11f Get rid of explicit ErrorInfo constructors 2020-06-15 14:06:58 +02:00
Eelco Dolstra fd64e4fb96 Disambiguate BaseError(Args) constructor
This means that 'throw Error({ ... ErrorInfo ... })' now works.
2020-06-15 13:50:33 +02:00
Eelco Dolstra 7a77762961 Merge branch 'errors-phase-2' of https://github.com/bburdette/nix 2020-06-15 11:46:31 +02:00
John Ericson f6f01416b7 Use std::string_view in a few more places 2020-06-12 21:32:30 +00:00
Eelco Dolstra 2853ba4ab2 Fix build 2020-06-12 19:00:48 +02:00
Eelco Dolstra 00fa7e2205
Merge pull request #3674 from matthewbauer/allow-empty-hash2
Allow empty hash in derivations
2020-06-12 18:18:12 +02:00
Matthew Bauer ea0d29d99a Provide base argument to to_string 2020-06-12 10:18:27 -05:00
Matthew Bauer b260c9ee03 Add newHashAllowEmpty helper function
This replaces the copy&paste with a helper function in hash.hh.
2020-06-12 10:11:16 -05:00
Eelco Dolstra 4a4c063222
Merge pull request #3670 from gilligan/add-pool-tests
Add tests for pool.hh
2020-06-12 11:19:05 +02:00
Ben Burdette ef1b3f21b6 Merge remote-tracking branch 'upstream/master' into errors-phase-2 2020-06-11 14:06:35 -06:00
Eelco Dolstra ac4d43a31b
Merge pull request #3073 from tweag/machine-logs
Add an option to print the logs in a machine-readable format
2020-06-11 15:45:18 +02:00
Eelco Dolstra dd9bb11d0d Move names.{cc,hh} to libstore 2020-06-11 15:42:18 +02:00
Tobias Pflug 4750d98bbd Add tests for pool.hh 2020-06-10 22:29:50 +02:00
Eelco Dolstra b9ae1bdd7a
Merge pull request #3655 from zimbatm/hash-encoding-prepare
libutils/hash: remove default encoding
2020-06-10 11:48:38 +02:00
Ben Burdette 2f19650768 add file origin to Pos in stests 2020-06-08 11:21:17 -06:00
Ben Burdette b1c53b034c Merge branch 'errors-phase-2' into caveman-LOCs 2020-06-08 11:10:13 -06:00
regnat 801112de1a Move progress-bar.cc to libmain
Needed so that we can include it as a logger in loggers.cc without
adding a dependency on nix

This also requires moving names.hh to libutil to prevent a circular
dependency between libmain and libexpr
2020-06-08 17:16:52 +02:00
Eelco Dolstra 6470450ab4 Add completion for --update-input 2020-06-08 16:20:00 +02:00
Tobias Pflug cd6dbf951a Add compression unit tests 2020-06-08 11:34:37 +02:00
regnat 4983401440 Unify the printing of the logs between bar-with-logs and raw
Make the printing of the build logs systematically go through the
logger, and replicate the behavior of `no-build-output` by having two
different loggers (one that prints the build logs and one that doesn't)
2020-06-08 09:31:15 +02:00
regnat 170e86dff5 Make the logger customisable
Add a new `--log-format` cli argument to change the format of the logs.
The possible values are
- raw (the default one for old-style commands)
- bar (the default one for new-style commands)
- bar-with-logs (equivalent to `--print-build-logs`)
- internal-json (the internal machine-readable json format)
2020-06-08 09:31:15 +02:00
Ben Burdette 94c347577e set verbosity levels 2020-06-07 07:24:49 -06:00
Tobias Pflug 952e72c804 Add tests for logging.hh 2020-06-06 10:22:32 +02:00
John Ericson e5cc1ebc5d Merge remote-tracking branch 'upstream/master' into no-stringly-typed-derivation-output 2020-06-04 21:04:35 +00:00
John Ericson a7b82fd006 Remove file which shouldn't be committed 2020-06-04 21:04:20 +00:00
Ben Burdette 94427ffee3 add some comments 2020-06-04 11:53:19 -06:00
Eelco Dolstra f85606c431 Merge remote-tracking branch 'origin/master' into flakes 2020-06-04 13:16:28 +02:00
Eelco Dolstra 0f44b60e6d Make 'nix dev-shell' a deprecated alias for 'nix develop' 2020-06-04 11:14:19 +02:00
Ben Burdette 4335ba999b Merge remote-tracking branch 'upstream/master' into errors-phase-2 2020-06-03 17:00:00 -06:00
Ben Burdette f97576c5d9 newline-as-prefix; no final newline in output. 2020-06-03 14:47:00 -06:00
Eelco Dolstra c20591ddc3 Merge remote-tracking branch 'origin/master' into flakes 2020-06-03 16:15:22 +02:00
Jonas Chevalier 6ee03b8444
libutils/hash: remove default encoding
This will make it easier to reason about the hash encoding and switch to
SRI everywhere where possible.
2020-06-03 13:49:51 +02:00
John Ericson 01572c2198
Missing #include <cassert> in lru-cache.hh (#3654)
This was a latent bug that just appeared because of the tests that were
added. Remember to wait for CI! :)
2020-06-03 10:15:22 +00:00
John Ericson 1fcd3afc38 Fix hashes 2020-06-02 20:35:17 +00:00
John Ericson c664e68b87 Fix to-base --type handler to correctly set std::optional flag
Now that we have a separate flag function, also describe why it is
optional.
2020-06-02 18:25:32 +00:00
John Ericson d73dbc8e4c Remove hashingWithUnknownAlgoExits
A valid hash type must be provided now. The hash itself can still be
invalid, but that doesn't cause an `abort()`.
2020-06-02 16:28:54 +00:00
John Ericson 64cffb804a Merge remote-tracking branch 'upstream/master' into no-hash-type-unknown 2020-06-02 16:07:25 +00:00
John Ericson 450dcf2c1b Remove HashType::Unknown
Instead, `Hash` uses `std::optional<HashType>`. In the future, we may
also make `Hash` itself require a known hash type, encoraging people to
use `std::optional<Hash>` instead.
2020-06-02 15:52:13 +00:00
Ben Burdette 156d4f8bc8 remove extra space in SysErrors 2020-06-02 08:45:37 -06:00
Ben Burdette d82d230b40 elide the 'ErrorInfo' in logError and logWarning calls 2020-06-02 08:22:24 -06:00
Eelco Dolstra c16fdda3a6 Merge branch 'lru-tests' of https://github.com/gilligan/nix 2020-06-02 12:07:48 +02:00
Eelco Dolstra e9fee8e6a7
src/libutil/tests/lru-cache.cc: Check erase()
Co-authored-by: James Lee <jbit@jbit.net>
2020-06-02 12:06:59 +02:00
Tobias Pflug eca1ff7a9f Add tests for lru-cache.hh 2020-05-31 01:05:05 +02:00
Nikola Knezevic 77007d4eab Improve ref validity checking in fetchGit
The previous regex was too strict and did not match what git was allowing. It
could lead to `fetchGit` not accepting valid branch names, even though they
exist in a repository (for example, branch names containing `/`, which are
pretty standard, like `release/1.0` branches).

The new regex defines what a branch name should **NOT** contain. It takes the
definitions from `refs.c` in https://github.com/git/git and `git help
check-ref-format` pages.

This change also introduces a test for ref name validity checking, which
compares the result from Nix with the result of `git check-ref-format --branch`.
2020-05-30 12:29:35 +02:00
Ben Burdette 734283d636 Merge remote-tracking branch 'upstream/master' into errors-phase-2 2020-05-29 09:51:37 -06:00
Carlo Nucera 6dd471ebf6 Fixing the result of merge 2020-05-28 12:14:36 -04:00
Carlo Nucera 4f597fb901 Merge branch 'master' of github.com:NixOS/nix into enum-class 2020-05-28 10:58:22 -04:00
John Ericson 5b4cd84bc2 Merge remote-tracking branch 'me/more-rust-ffi' into no-stringly-typed-derivation-output 2020-05-28 10:35:53 -04:00
John Ericson ef71caba29 Merge remote-tracking branch 'upstream/master' into more-rust-ffi 2020-05-28 10:31:46 -04:00
Eelco Dolstra 17ca997fc6 Merge remote-tracking branch 'origin/master' into flakes 2020-05-28 12:55:24 +02:00
Andreas Rammhold fc137d2f00
config.hh: Add documentation
Provides some general overview on the mechanics of Config/Setting and
comments for the public methods of Config.
2020-05-27 17:47:18 +02:00
Andreas Rammhold 9df3d8ccd7
tests/config.cc: add tests for Config::applyConfig 2020-05-27 17:47:18 +02:00
Andreas Rammhold e1b8c64c04
config.cc: extract parts of applyConfigFile into applyConfig
This moves the actual parsing of configuration contents into applyConfig
which applyConfigFile is then going to call. By changing this we can now
test the configuration file parsing without actually create a file on
disk.
2020-05-27 17:47:18 +02:00
Andreas Rammhold 93129cf1dd
Add unit tests for config.cc 2020-05-27 17:47:17 +02:00
Eelco Dolstra 66d3ac94c9 Merge pull request #3621 from gilligan/add-json-tests
Add unit tests for "json.hh"
2020-05-27 11:08:12 +02:00
Eelco Dolstra dae6a267a8
Merge pull request #3625 from gilligan/xml-writer-tests
Add unit tests for xml-writer
2020-05-27 11:07:53 +02:00
Carlo Nucera 89a5ac9d3b Merge remote-tracking branch 'john-ericson/more-rust-ffi' into no-stringly-typed-derivation-output 2020-05-26 12:31:26 -04:00
Carlo Nucera d49e65ba9d Merge remote-tracking branch 'john-ericson/enum-FileIngestionMethod' into no-stringly-typed-derivation-output 2020-05-26 12:30:48 -04:00
Carlo Nucera 0f3f901071 Merge remote-tracking branch 'origin/master' into more-rust-ffi 2020-05-26 11:46:42 -04:00
Carlo Nucera c2f33edd1f
Update src/libutil/rust-ffi.hh
Co-authored-by: Cole Helbling <cole.e.helbling@outlook.com>
2020-05-26 11:43:18 -04:00
Tobias Pflug 4b388e8431 Add unit tests for xml-writer 2020-05-25 18:34:55 +02:00
Tobias Pflug c284700867 Add unit tests for "json.hh" 2020-05-25 11:57:45 +02:00
Tobias Pflug ecc5c90dfc Add unit tests for hashing functions 2020-05-25 11:50:41 +02:00
Ben Burdette 0e49de6a2b position for stdin, string; (string) for trace; fix tests 2020-05-21 14:28:45 -06:00
Ben Burdette 6a420d672c print LOC for stdin, string args 2020-05-20 22:18:26 -06:00
Ben Burdette 85ce455b85 get code lines from the nix file 2020-05-20 17:25:02 -06:00
Tobias Pflug a73a820a5d Add unit testes for url.cc
This adds tests for

- parseURL
- percentDecode
- decodeQuery
2020-05-20 16:37:35 +02:00
Ben Burdette 19694aa213 fix compile errors 2020-05-14 12:28:18 -06:00
Ben Burdette ef9dd9f9bc formatting and a few minor changes 2020-05-13 15:56:39 -06:00
Ben Burdette bfca5fc395 change status messages to info level 2020-05-13 09:52:36 -06:00
Ben Burdette ecbb8e9c0a no blank line if no LOC 2020-05-12 14:41:30 -06:00
Ben Burdette 19cffc29c9 remove unused extra json fields 2020-05-12 12:09:12 -06:00
Eelco Dolstra 437614b479 Fix macOS build
macOS doesn't have GLOB_ONLYDIR.
2020-05-12 11:09:09 +02:00
Ben Burdette b93c1bf3d6 fixes to merged code 2020-05-11 15:52:15 -06:00
Ben Burdette 59b1f5c701 Merge branch 'master' into errors-phase-2 2020-05-11 14:35:30 -06:00
Eelco Dolstra 27d34ef770 When completing flakerefs, only return directories 2020-05-11 22:04:13 +02:00
Eelco Dolstra e917332d63 Shut up warnings while running completers 2020-05-11 21:38:17 +02:00
Ben Burdette 958e81987b switch from printError warnings to logWarnings 2020-05-11 13:02:16 -06:00
Eelco Dolstra 4c3c638a05 Cleanup 2020-05-11 15:57:45 +02:00
Eelco Dolstra 0884f180f5 Simplify 2020-05-10 21:50:32 +02:00
Eelco Dolstra e0c19ee620 Add completion for paths 2020-05-10 21:35:07 +02:00
Eelco Dolstra 91ddee6bf0 nix: Implement basic bash completion 2020-05-10 20:32:21 +02:00
Ben Burdette 55eb717148 add pos to errorinfo, remove from hints 2020-05-08 18:18:28 -06:00
Tobias Pflug 181a47d884 Enable toLower umlauts test
Update comment and enable the test
2020-05-08 15:13:55 +02:00
Tobias Pflug 2191141274 Enable baseNameOf test
Add note about removal of trailing slashes in the doc comment of
baseNameOf and enabled the test.
2020-05-08 15:07:40 +02:00
Tobias Pflug e3df9c2a6e Enable dirOf test
Adjusted the doc comment for `dirOf` to reflect the implementation
behavior.
2020-05-08 15:03:44 +02:00
Eelco Dolstra 5b8883faac
configure: Look for gtest 2020-05-08 12:09:37 +02:00
Eelco Dolstra ca657525b8
Don't install unit tests 2020-05-08 12:03:27 +02:00
Eelco Dolstra 7898cdb75a
make check: Run unit tests 2020-05-08 11:49:40 +02:00
Eelco Dolstra 72b9d971bc
Fix warning 2020-05-08 11:35:57 +02:00
Eelco Dolstra 7cc7cef950
Move unit tests to sr/libutil/tests, use mk make rules 2020-05-08 11:34:09 +02:00
Ben Burdette 1b801cec40 pretending to be const 2020-05-07 16:43:36 -06:00
Tobias Pflug 1f3602a2c9 Remove replaceInSet
The function isn't being used anywhere so it seems safe to remove
2020-05-07 18:15:13 +02:00
Ben Burdette e76ad2e48a implement SysError errno handling 2020-05-06 14:07:20 -06:00
Eelco Dolstra 2f8ee4578f
Merge remote-tracking branch 'origin/master' into flakes 2020-05-06 12:01:40 +02:00
Eelco Dolstra 74a1bfdcab
Merge pull request #3546 from guibou/nix_readfile_on_0_sized_files
builtins.readFile: do not truncate content
2020-05-06 11:33:55 +02:00
Eelco Dolstra fd4911269f
Revert "Merge pull request #3558 from LnL7/ssh-ng-stderr"
This reverts commit 3ebfbecdd1, reversing
changes made to c089c52d5f.

https://github.com/NixOS/nix/pull/3558
2020-05-06 10:54:18 +02:00
Eelco Dolstra 6f3244ce45 Merge remote-tracking branch 'origin/master' into flakes 2020-05-05 18:59:33 +02:00
Eelco Dolstra f132d82a79 nix --help: Group commands 2020-05-05 15:18:23 +02:00
Ben Burdette 7ffb5efdbc appending to hints; remove _printError 2020-05-04 16:19:57 -06:00
Ben Burdette f30de61578 add normaltxt, yellowify->yellowtxt 2020-05-04 16:19:20 -06:00
Ben Burdette afaa541013 affinity operator<< 2020-05-04 14:44:00 -06:00
Eelco Dolstra a721a0b114 Flag: Use designated initializers 2020-05-04 22:40:19 +02:00
Ben Burdette ab6f0b9641 convert some printError calls to logError 2020-05-03 08:01:25 -06:00
Daiderd Jordan 4769eea5e2
logging: handle build log lines in simple logger
The raw stderr output isn't logged anymore so the build logs need to be
printed by the default logger in order for the old commands like
nix-build to still show build output.
2020-05-02 23:40:53 +02:00
Ben Burdette 39ff80d031 errorinfo constructor test 2020-04-29 18:57:05 -06:00
Guillaume Bouchard 2e5be2a749 StringSink pre allocate
When used with `readFile`, we have a pretty good heuristic of the file
size, so `reserve` this in the `string`. This will save some allocation
/ copy when the string is growing.
2020-04-29 18:44:01 +02:00
Guillaume Bouchard 7afcb5af98 Remove the drain argument from readFile
Now it is always `drain` (see previous commit).
2020-04-29 18:43:45 +02:00
Ben Burdette e2f61263eb uncrustify formatting 2020-04-29 10:14:32 -06:00
Guillaume Bouchard 5a34a473dd builtins.readFile: do not truncate content
This closes #3026 by allowing `builtins.readFile` to read a file with a
wrongly reported file size, for example, files in `/proc` may report a
file size of 0. Reading file in `/proc` is not a good enough motivation,
however I do think it just makes nix more robust by allowing more file
to be read.  Especially, I do considerer the previous behavior to be
dangerous because nix was previously reading truncated files. Examples
of file system which incorrectly report file size may be network file
system or dynamic file system (for performance reason, a dynamic file
system such as FUSE may generate the content of the file on demand).

```
nix-repl> builtins.readFile "/proc/version"
""
```

With this commit:

```
nix-repl> builtins.readFile "/proc/version"
"Linux version 5.6.7 (nixbld@localhost) (gcc version 9.3.0 (GCC)) #1-NixOS SMP Thu Apr 23 08:38:27 UTC 2020\n"
```

Here is a summary of the behavior changes:

- If the reported size is smaller, previous implementation
was silently returning a truncated file content. The new implementation
is returning the correct file content.

- If a file had a bigger reported file size, previous implementation was
failing with an exception, but the new implementation is returning the
correct file content. This change of behavior is coherent with this pull
request.

Open questions

- The behavior is unchanged for correctly reported file size, however
performances may vary because it uses the more complex sink interface.
Considering that sink is used a lot, I don't think this impacts the
performance a lot.
- `builtins.readFile` on an infinite file, such as `/dev/random` may
fill the memory.
- it does not support adding file to store, such as `${/proc/version}`.
2020-04-29 14:50:52 +02:00
Eelco Dolstra 5ada0831cf Merge remote-tracking branch 'origin/master' into flakes 2020-04-29 13:32:27 +02:00
Ben Burdette 22e6490311 Error classname as name 2020-04-28 21:06:08 -06:00
Ben Burdette e51a757720 astyle format 2020-04-27 15:15:08 -06:00
Alyssa Ross c05e20daa1
Fix long paths permanently breaking GC
Suppose I have a path /nix/store/[hash]-[name]/a/a/a/a/a/[...]/a,
long enough that everything after "/nix/store/" is longer than 4096
(MAX_PATH) bytes.

Nix will happily allow such a path to be inserted into the store,
because it doesn't look at all the nested structure.  It just cares
about the /nix/store/[hash]-[name] part.  But, when the path is deleted,
we encounter a problem.  Nix will move the path to /nix/store/trash, but
then when it's trying to recursively delete the trash directory, it will
at some point try to unlink
/nix/store/trash/[hash]-[name]/a/a/a/a/a/[...]/a.  This will fail,
because the path is too long.  After this has failed, any store deletion
operation will never work again, because Nix needs to delete the trash
directory before recreating it to move new things to it.  (I assume this
is because otherwise a path being deleted could already exist in the
trash, and then moving it would fail.)

This means that if I can trick somebody into just fetching a tarball
containing a path of the right length, they won't be able to delete
store paths or garbage collect ever again, until the offending path is
manually removed from /nix/store/trash.  (And even fixing this manually
is quite difficult if you don't understand the issue, because the
absolute path that Nix says it failed to remove is also too long for
rm(1).)

This patch fixes the issue by making Nix's recursive delete operation
use unlinkat(2).  This function takes a relative path and a directory
file descriptor.  We ensure that the relative path is always just the
name of the directory entry, and therefore its length will never exceed
255 bytes.  This means that it will never even come close to AX_PATH,
and Nix will therefore be able to handle removing arbitrarily deep
directory hierachies.

Since the directory file descriptor is used for recursion after being
used in readDirectory, I made a variant of readDirectory that takes an
already open directory stream, to avoid the directory being opened
multiple times.  As we have seen from this issue, the less we have to
interact with paths, the better, and so it's good to reuse file
descriptors where possible.

I left _deletePath as succeeding even if the parent directory doesn't
exist, even though that feels wrong to me, because without that early
return, the linux-sandbox test failed.

Reported-by: Alyssa Ross <hi@alyssa.is>
Thanks-to: Puck Meerburg <puck@puckipedia.com>
Tested-by: Puck Meerburg <puck@puckipedia.com>
Reviewed-by: Puck Meerburg <puck@puckipedia.com>
2020-04-27 20:50:17 +00:00
Ben Burdette 1ff42722ce error.hh 2020-04-26 14:47:41 -06:00
Ben Burdette d4fd7b543e print dashes instead of empty name string 2020-04-25 12:05:26 -06:00
Ben Burdette cdac083dc5 don't print blank lines for blank description 2020-04-24 21:40:13 -06:00
Ben Burdette d8d4844b88 all things error to error.hh 2020-04-24 14:57:51 -06:00
Ben Burdette d9632765a8 add has_value check; remove obslete friend class 2020-04-24 12:44:23 -06:00
Ben Burdette 833501f6f1 'what' string 2020-04-23 15:55:34 -06:00
Eelco Dolstra ef4d3fc111 Merge remote-tracking branch 'origin/master' into flakes 2020-04-23 15:16:18 +02:00
Eelco Dolstra c9d0cf7e02
Don't include error.hh in util.hh to prevent header bloat 2020-04-22 15:29:27 +02:00
Eelco Dolstra 16e3bf4537
Merge branch 'error-format' of https://github.com/bburdette/nix 2020-04-22 15:29:10 +02:00
Ben Burdette e4fb9a3849 remove 'format' from Error constructor calls 2020-04-21 17:07:07 -06:00
Ben Burdette d3052197fe add ErrorInfo to BaseError 2020-04-21 13:25:41 -06:00
Ben Burdette 4697552948 demoing other error levels than warn/error; rename line and file fields in errPos 2020-04-17 15:50:46 -06:00
Ben Burdette 3d5b1032a1 logError, logWarning; Logger functions; switch to Verbosity enum 2020-04-17 15:07:44 -06:00
Ben Burdette 12814806ef iomanip no longer needed 2020-04-16 10:48:15 -06:00
Eelco Dolstra 0858738355 Merge remote-tracking branch 'origin/master' into flakes 2020-04-16 18:27:37 +02:00
Eelco Dolstra 67a5941472 Logger: Add method for writing to stdout
Usually this just writes to stdout, but for ProgressBar, we need to
clear the current line, write the line to stdout, and then redraw the
progress bar.

(cherry picked from commit 696c026006)
2020-04-16 18:03:38 +02:00
Ben Burdette 96262e744e switch to structs, which don't need public: 2020-04-16 09:55:38 -06:00
Eelco Dolstra 696c026006 Logger: Add method for writing to stdout
Usually this just writes to stdout, but for ProgressBar, we need to
clear the current line, write the line to stdout, and then redraw the
progress bar.
2020-04-16 13:47:59 +02:00
Ben Burdette 057e5b6b2e move implementation to cc 2020-04-15 10:09:43 -06:00
Ben Burdette adf03b0b8e Merge branch 'initializer-style' into error-format 2020-04-15 10:06:20 -06:00
Jonas Chevalier 895516cadf
add NIX_USER_CONF_FILES
Motivation: maintain project-level configuration files.

Document the whole situation a bit better so that it corresponds to the
implementation, and add NIX_USER_CONF_FILES that allows overriding
which user files Nix will load during startup.
2020-04-14 18:45:06 +02:00
Eelco Dolstra d103c79144
Merge remote-tracking branch 'origin/master' into flakes 2020-04-09 15:54:21 +02:00
Nikola Knezevic c330109bfa DataTransfer -> FileTransfer 2020-04-08 22:26:57 +02:00
Nikola Knezevic a0c5931208 actDownload -> actDataTransfer 2020-04-08 22:26:57 +02:00
Ben Burdette 805ffe1bc9 indention 2020-04-08 11:33:46 -06:00
Ben Burdette 8c2bf15c4f format -> fmt 2020-04-08 11:17:02 -06:00
Ben Burdette 555baa8fb0 comments 2020-04-08 09:56:10 -06:00
Ben Burdette 54f91923c8 return of NixCode 2020-04-08 09:48:21 -06:00
Ben Burdette 47ed067d45 initializer style 2020-04-08 09:07:58 -06:00
Ben Burdette 00c507cc52 columnRange -> column 2020-04-07 14:36:32 -06:00
Ben Burdette 20c0984a46 remove columnrange; switch to fmt in error.cc 2020-04-07 10:14:15 -06:00
Eelco Dolstra 462421d345 Backport libfetchers from the flakes branch
This provides a pluggable mechanism for defining new fetchers. It adds
a builtin function 'fetchTree' that generalizes existing fetchers like
'fetchGit', 'fetchMercurial' and 'fetchTarball'. 'fetchTree' takes a
set of attributes, e.g.

  fetchTree {
    type = "git";
    url = "https://example.org/repo.git";
    ref = "some-branch";
    rev = "abcdef...";
  }

The existing fetchers are just wrappers around this. Note that the
input attributes to fetchTree are the same as flake input
specifications and flake lock file entries.

All fetchers share a common cache stored in
~/.cache/nix/fetcher-cache-v1.sqlite. This replaces the ad hoc caching
mechanisms in fetchGit and download.cc (e.g. ~/.cache/nix/{tarballs,git-revs*}).

This also adds support for Git worktrees (c169ea5904).
2020-04-07 09:03:14 +02:00
Ben Burdette 55c96b64e4 comment cleanup 2020-04-06 20:14:48 -06:00
Ben Burdette ec449c8450 constructor style basically working 2020-04-06 19:43:22 -06:00
Ben Burdette 216263c36f Merge branch 'master' into error-format 2020-04-06 10:00:00 -06:00
Ben Burdette 9bb528d392 handle Pos instead of individual file/line/columnrange args 2020-04-03 13:15:59 -06:00
Ben Burdette 7b7801d3f0 variadic args for hint format 2020-04-03 08:48:20 -06:00